Accident Moderate Severity Resolved

CHP : Traffic Hazard on CA-4 Westbound east of Hillcrest Ave (Antioch). Lanes affected. Expect delays.

A injury accident was reported on CA-4 W near Contra Costa on May 17, 2026 at 9:14 PM.

Road

CA-4 W

Area

Contra Costa

Address

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Started

May 17, 2:14 PM

Last Updated

5 months, 1 week ago

May 17, 2:45 PM

Resolved

May 17, 9:00 PM

Coordinates

37.9956, -121.7804

Update History

2 observations

CHP : Traffic Hazard on CA-4 Westbound east of Hillcrest Ave (Antioch). Lanes affected. Expect delays. May 17, 2:30 PM

CHP : Disabled vehicle on CA-4 Westbound east of Hillcrest Ave (Antioch). Lanes affected. Expect delays. May 17, 2:15 PM

Source: 511_sfbay · ID 511.org/1495755 First seen May 17, 2026 2:15 PM